Ultra-broadband bidirectional dual-band ouantum-dot semiconductor optical amplifier. - Holger Schmeckebier; Benjamin Lingnau; Swen Koenig; Kathy Lüdge; Christian Meuer; Anissa Zeghuzi; Dejan Arsenijevic; Mirko Stubenrauch; Rene Bonk; Christian Koos; Colja Schubert; Thomas Pfeiffer 001; et al. (OFC, 2015)